All assignees
799 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-901 | HOUSTON | 6630 | — | — |
| 713-902 | SUGAR LAND | 5562 | 2020-06-19 | Yes |
| 713-903 | BAYTOWN | 903C | 2019-02-05 | Yes |
| 713-904 | HOUSTON | 7138 | 2011-09-23 | Yes |
| 713-905 | HOUSTON | 6630 | — | — |
| 713-906 | HOUSTON | 6506 | — | — |
| 713-907 | HOUSTON | 6506 | — | — |
| 713-908 | HOUSTON | 9748 | — | — |
| 713-909 | HSTNSUBURB | 9533 | 2010-11-12 | Yes |
| 713-910 | HOUSTON | 9533 | — | — |
| 713-911 | XXXXXXXXXX | MULT | — | — |
| 713-912 | RICHMNRNBG | 624H | 2024-04-02 | Yes |
| 713-913 | BARKER | 004F | 2020-08-14 | Yes |
| 713-914 | HOUSTON | 9533 | — | — |
| 713-915 | HOUSTON | 6630 | — | — |
| 713-916 | HOUSTON | 6630 | — | — |
| 713-917 | HOUSTON | 9533 | — | — |
| 713-918 | HOUSTON | 9533 | — | Yes |
| 713-919 | BROOKSHIRE | 624H | 2025-09-02 | Yes |
| 713-920 | HOUSTON | 9533 | — | Yes |
| 713-921 | HOUSTON | 9533 | — | — |
| 713-922 | HOUSTON | 6701 | — | — |
| 713-923 | HOUSTON | 9533 | — | Yes |
| 713-924 | HOUSTON | 9533 | — | Yes |
| 713-925 | HOUSTON | 624H | 2022-07-15 | Yes |
| 713-926 | HOUSTON | 9533 | — | Yes |
| 713-927 | HOUSTON | 6701 | — | Yes |
| 713-928 | HOUSTON | 9533 | — | Yes |
| 713-929 | HOUSTON | 7715 | 2005-08-19 | Yes |
| 713-930 | HOUSTON | 903C | 2020-12-08 | Yes |
| 713-931 | HOUSTON | 903C | 2007-05-04 | Yes |
| 713-932 | HOUSTON | 9533 | — | — |
| 713-933 | HOUSTON | 903C | — | Yes |
| 713-934 | HOUSTON | 9533 | — | — |
| 713-935 | HOUSTON | 9533 | — | Yes |
| 713-936 | HOUSTON | 903C | 2007-09-19 | Yes |
| 713-937 | HSTNSUBURB | 9533 | — | — |
| 713-938 | LANGHAMCRK | 624H | 2025-09-02 | Yes |
| 713-939 | HOUSTON | 9533 | — | — |
| 713-940 | HOUSTON | 9533 | — | Yes |
| 713-941 | HOUSTON | 9533 | — | Yes |
| 713-942 | HOUSTON | 9533 | — | — |
| 713-943 | HOUSTON | 9533 | — | — |
| 713-944 | HOUSTON | 9533 | — | — |
| 713-945 | HOUSTON | 9533 | — | — |
| 713-946 | HOUSTON | 9533 | — | — |
| 713-947 | HOUSTON | 9533 | — | — |
| 713-948 | HOUSTON | 9533 | — | — |
| 713-949 | RICHMNRNBG | 624H | 2025-09-02 | Yes |
| 713-950 | — | — | ||
| 713-951 | HOUSTON | 9533 | — | — |
| 713-952 | HOUSTON | 9533 | — | — |
| 713-953 | HOUSTON | 9533 | — | — |
| 713-954 | HOUSTON | 9533 | — | — |
| 713-955 | HOUSTON | 177F | 2011-04-14 | Yes |
| 713-956 | HOUSTON | 9533 | — | — |
| 713-957 | HOUSTON | 9533 | — | Yes |
| 713-958 | — | — | ||
| 713-959 | — | — | ||
| 713-960 | HOUSTON | 9533 | — | Yes |
| 713-961 | HOUSTON | 9533 | — | — |
| 713-962 | HOUSTON | 6534 | 2001-05-08 | — |
| 713-963 | HOUSTON | 9533 | — | — |
| 713-964 | HOUSTON | 9533 | — | — |
| 713-965 | HOUSTON | 9533 | — | Yes |
| 713-966 | HOUSTON | 9533 | — | Yes |
| 713-967 | HOUSTON | 9533 | — | — |
| 713-968 | HOUSTON | 9533 | — | — |
| 713-969 | HOUSTON | 6534 | — | Yes |
| 713-970 | HOUSTON | 9533 | — | Yes |
| 713-971 | HOUSTON | 6630 | — | — |
| 713-972 | HOUSTON | 9533 | — | Yes |
| 713-973 | HOUSTON | 9533 | — | — |
| 713-974 | HOUSTON | 9533 | — | — |
| 713-975 | HOUSTON | 9533 | — | — |
| 713-976 | — | — | ||
| 713-977 | HOUSTON | 9533 | — | — |
| 713-978 | HOUSTON | 9533 | — | Yes |
| 713-979 | HOUSTON | 903C | — | Yes |
| 713-980 | HOUSTON | 903C | — | — |
| 713-981 | HOUSTON | 9533 | — | — |
| 713-982 | HOUSTON | 9533 | — | — |
| 713-983 | HSTNSUBURB | 9533 | — | — |
| 713-984 | HOUSTON | 9533 | — | Yes |
| 713-985 | HOUSTON | 9533 | — | Yes |
| 713-986 | HOUSTON | 7138 | — | — |
| 713-987 | HOUSTON | 9533 | — | Yes |
| 713-988 | HOUSTON | 9533 | — | — |
| 713-989 | HOUSTON | 9533 | — | — |
| 713-990 | HOUSTON | 6630 | — | — |
| 713-991 | HOUSTON | 9533 | — | — |
| 713-992 | SPRING | 6701 | — | Yes |
| 713-993 | HOUSTON | 9533 | — | Yes |
| 713-994 | HOUSTON | 9533 | — | — |
| 713-995 | HOUSTON | 9533 | — | — |
| 713-996 | HOUSTON | 9533 | — | — |
| 713-997 | HOUSTON | 7138 | 2011-09-07 | Yes |
| 713-998 | HSTNSUBURB | 6701 | 2012-01-18 | Yes |
| 713-999 | HUFFMAN | 6114 | 2009-03-16 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.